Perl Audio Converter

I've had Perl Audio Converter (pacpl) installed (on Lenny) since version 3.3.2 (about two years). For the last three weeks, whenever I use the program, the server hangs, and needs a hard reboot. Prior to three weeks ago, the program ran perfectly. No other changes / upgrades have been made on the machine around that time.

I use the program to convert .mp2 files that are downloaded each week (via wget) to a .mp3 file.

I couldn't find anything in the logs that indicated what the problem may be. Today, I downloaded version 4.0.5 (newest stable...been released for nearly a year) and that didn't change the outcome...the server still hung.